Syntax

Remarks

The attributes are combined using the bitwise OR operation as follows:

Code implementation masks:

CodeTypeMask

IL

Native

OPTIL

Runtime

Managed masks:

ManagedMask

Unmanaged

Managed

Implementation information and interop masks:

ForwardRef

PreserveSig

InternalCall

Synchronized

NoInlining

NoOptimization

MaxMethodImplVal

Note:

Locking on the instance or on the type, as with the MethodImplAttributes.Synchronized flag, is not recommended for public types, because code other than your own can take locks on public types and instances. This might cause deadlocks or other synchronization problems.

Members

Member Name

Description

AggressiveInlining

Specifies that the method should be inlined wherever possible.

CodeTypeMask

Specifies flags about code type.

ForwardRef

Specifies that the method is not defined.

IL

Specifies that the method implementation is in Microsoft intermediate language (MSIL).

InternalCall

Specifies an internal call.

Managed

Specifies that the method is implemented in managed code.

ManagedMask

Specifies whether the method is implemented in managed or unmanaged code.

MaxMethodImplVal

Specifies a range check value.

Native

Specifies that the method implementation is native.

NoInlining

Specifies that the method cannot be inlined.

NoOptimization

Specifies that the method is not optimized by the just-in-time (JIT) compiler or by native code generation (see Ngen.exe) when debugging possible code generation problems.

OPTIL

Specifies that the method implementation is in Optimized Intermediate Language (OPTIL).

PreserveSig

Specifies that the method signature is exported exactly as declared.

Runtime

Specifies that the method implementation is provided by the runtime.

Synchronized

Specifies that the method is single-threaded through the body. Static methods (Shared in Visual Basic) lock on the type, whereas instance methods lock on the instance. You can also use the C# lock statement or the Visual Basic SyncLock statement for this purpose.